package com.ybg.base.util;
import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import com.ybg.base.util.webexception.ResultException;
import java.util.Set;

/** hibernate-validator校验工具类 主要校验bean
 *
 * 参考文档：http://docs.jboss.org/hibernate/validator/5.4/reference/en-US/html_single/
 *
 * @author chenshun
 * @email sunlightcs@gmail.com
 * @date 2017-03-15 10:50 */
public class ValidatorUtils {
	
	private static Validator validator;
	static {
		validator = Validation.buildDefaultValidatorFactory().getValidator();
	}
	
	/** 校验对象
	 * 
	 * @param object
	 *            待校验对象
	 * @param groups
	 *            待校验的组
	 * @throws ResultException
	 *             校验不通过，则报RRException异常 */
	public static void validateEntity(Object object, Class<?>... groups) {
		Set<ConstraintViolation<Object>> constraintViolations = validator.validate(object, groups);
		if (!constraintViolations.isEmpty()) {
			ConstraintViolation<Object> constraint = (ConstraintViolation<Object>) constraintViolations.iterator().next();
			throw new ResultException(constraint.getMessage());
		}
	}
}
